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Keppler kicks the bucket, pity electric power can't be converted to thrust by RichA[_6_]
November 3rd 18 01:09 AM
by Quadibloc Go to last post
1 811
bright NEO object from NEO confirmation list by [email protected]
This morning there was a bright (~12th magnitude) object listed on the NEO confirmation page; it is now no longer on the list, presumably because additional...
November 2nd 18 02:58 PM
by [email protected] Go to last post
0 770
First day of winter by Gerald Kelleher
The next 3 months with the December Solstice at their centre represent that period when Northern hemisphere locations begin to slide into the darkest and...
November 1st 18 10:52 AM
by Gerald Kelleher Go to last post
0 952
What sometimes happens by Gerald Kelleher
Over the years I developed a real respect for astronomical practitioners at the level of composition which involves completing a narrative with incomplete...
November 1st 18 09:18 AM
by Gerald Kelleher Go to last post
1 740
Astronomy Photographer of the Year 2018 by StarDust
October 31st 18 01:30 PM
by [email protected] Go to last post
2 739
The astronomical importance of Samhain/Halloween by Gerald Kelleher
How to fit the Middle Eastern Judaeo-Christian festivals i with the Northern European festivals designed around astronomical milestones was always going to...
October 29th 18 11:00 AM
by Gerald Kelleher Go to last post
0 712
Climate from an astronomical perspective by Gerald Kelleher
The climate conditions of each planet ,apart from size,composition and distance from the Sun is due to inclination. The greater degree in inclination the more...
October 26th 18 08:50 PM
by Gerald Kelleher Go to last post
1 767
Manned Venus Mission? by Trawley Trash
On Tue, 16 Oct 2018 10:28:00 -0000 (UTC) Mike Collins wrote: Its a pity Brad Guths no longer here to read this. ...
October 25th 18 07:33 PM
by Trawley Trash Go to last post
4 867
Mercury rocket at the mercy of solar gravity well by RichA[_6_]
October 25th 18 06:49 PM
by Gerald Kelleher Go to last post
7 711
social media sources of amateur astronomy news; are there any? by walter lebowitz jr
Are there any Twitter or other social media accounts worth following for one interested in: 1) rapid notification of new comet discoveries or outbursts of...
October 24th 18 11:52 AM
by Martin Brown[_3_] Go to last post
4 743
For those who appreciate logic and reasoning by Gerald Kelleher
The Equator and indeed the entire surface of the Earth turns in two distinct ways to the Sun generating the daily 24 hour day/night cycle and separately...
October 23rd 18 10:27 PM
by Gerald Kelleher Go to last post
1 734
NASA says they fixed Hubble gyro problem by RichA[_6_]
October 23rd 18 04:36 PM
by RichA[_6_] Go to last post
0 734
Geomagnetism by Gerald Kelleher
http://geomag.org/info/Declination/magnetic_declination_2010.gif The most underused observation is probably geomagnetism and specifically why it is not...
October 23rd 18 10:43 AM
by Gerald Kelleher Go to last post
0 747
Oh no, not again by Quadibloc
Saw this news...
(Multi-page thread 1 2)
October 21st 18 10:25 AM
by RichA[_6_] Go to last post
16 1,340
OT? Amateur Astronomy by Davoud[_1_]
The joke around here is that it only rained four times this summerčall of June, July, August, and September. When clear weather appeared on the night of 13-14...
(Multi-page thread 1 2)
October 21st 18 07:57 AM
by Gerald Kelleher Go to last post
13 1,160
Celebrating the Mercury mission by Gerald Kelleher
The very least they can do is partition the perspectives between the faster and slower moving planets where the actual loop of the faster Mercury seen from a...
October 20th 18 10:34 PM
by Gerald Kelleher Go to last post
0 722
Review of video commentary by Gerald Kelleher
https://www.youtube.com/watch?v=01QWC-rZcfE It is quite a sight these days to see these guys try their hand at proof of the Earth's orbital motion by...
October 20th 18 10:26 PM
by Gerald Kelleher Go to last post
2 669
The subculture (Part 2) by Gerald Kelleher
Hopefully without any distractions this time. The geocentric astronomers and even the Sun centered astronomers worked off a framework where the Sun moved...
October 18th 18 12:18 PM
by Gerald Kelleher Go to last post
0 677
The subculture that obscured genuine astronomy by Gerald Kelleher
The illusory loops (direct/retrograde motion) of the slower moving planets seen from Earth are distinguished from the actual loops (also direct/retrograde...
October 17th 18 03:48 PM
by Gerald Kelleher Go to last post
8 708
Modified explanation for twilight variations across latitudes by Gerald Kelleher
The Polar twilight and its presence for around 6 weeks after the Equinox at the North and South Poles is a separate issue with a separate rotational cause....
October 17th 18 09:32 AM
by Gerald Kelleher Go to last post
2 672
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